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этапы_загрузки_ubuntu [2011/02/10 14:44] val |
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| - | ====== Этапы загрузки Ubuntu ====== | ||
| - | <code> | ||
| - | man boot | ||
| - | </code> | ||
| - | ===== POST ===== | ||
| - | |||
| - | ===== MBR ===== | ||
| - | <code> | ||
| - | # dd if=/dev/sda of=/root/mbr.bak bs=512 count=1 | ||
| - | |||
| - | # fdisk -l /dev/sda | ||
| - | </code> | ||
| - | ===== GRUB ===== | ||
| - | |||
| - | [[Использование загрузчика GRUB]] | ||
| - | |||
| - | ===== Kernel + initrd ===== | ||
| - | |||
| - | ==== Монтирование файловых систем ==== | ||
| - | |||
| - | === Файловая система devfs === | ||
| - | <code> | ||
| - | # ls -l /dev/ttyS0 | ||
| - | </code> | ||
| - | |||
| - | === Файловая система procfs === | ||
| - | <code> | ||
| - | # cat /proc/5139/cmdline | ||
| - | |||
| - | устаревшие варианты использования | ||
| - | # cat /proc/interrupts | ||
| - | |||
| - | # cat /proc/cpuinfo | ||
| - | </code> | ||
| - | |||
| - | === Файловая система sysfs === | ||
| - | [[http://citkit.ru/articles/367/]] | ||
| - | <code> | ||
| - | # cat /sys/class/net/eth0/address | ||
| - | 00:0c:29:d2:6a:d3 | ||
| - | </code> | ||
| - | |||
| - | === Файловая система tmpfs === | ||
| - | <code> | ||
| - | /tmp | ||
| - | /var/run | ||
| - | /var/lock | ||
| - | </code> | ||
| - | |||
| - | === Традиционные файловые системы === | ||
| - | <code> | ||
| - | # cat /etc/fstab | ||
| - | |||
| - | # blkid | ||
| - | </code> | ||
| - | |||
| - | ===== Процесс init ===== | ||
| - | |||
| - | ==== Модули ядра ==== | ||
| - | <code> | ||
| - | # lsmod | ||
| - | |||
| - | # modprobe ip_gre | ||
| - | |||
| - | # modprobe -r ip_gre | ||
| - | |||
| - | # iptables -L | ||
| - | |||
| - | # lsmod | grep ip | ||
| - | |||
| - | # cat /etc/modules | ||
| - | </code> | ||
| - | |||
| - | |||
| - | ==== Система загрузки Upstart ==== | ||
| - | [[http://upstart.ubuntu.com/getting-started.html]] | ||
| - | |||
| - | <code> | ||
| - | # ls /etc/init/ | ||
| - | |||
| - | # start ssh | ||
| - | |||
| - | # stop ssh | ||
| - | </code> | ||
| - | |||
| - | ===== Система загрузки Sysvinit ===== | ||
| - | <code> | ||
| - | # runlevel | ||
| - | |||
| - | # ls /etc/init.d/ | ||
| - | |||
| - | # /etc/init.d/ssh start | ||
| - | |||
| - | # /etc/init.d/ssh stop | ||
| - | |||
| - | # ls /etc/rc2.d/ | ||
| - | |||
| - | # update-rc.d -f ssh remove | ||
| - | |||
| - | # update-rc.d ssh defaults | ||
| - | </code> | ||
| - | |||
| - | ===== Система загрузки rc.local ===== | ||
| - | <code> | ||
| - | # cat /etc/rc.local | ||
| - | </code> | ||